Baltimore’s medical examiner found that Freddie Gray’s fatal spinal injury “was caused when he slammed into the back of the police transport van” in which he’d been placed after his arrest, a local ABC station reports. The station also says a police report turned over to state prosecutors on Thursday “found no evidence” that Gray was injured during his “videotaped arrest and interaction with police officers.”

The Washington Postreported Wednesday that a police document says another suspect who was in the van—who was separated from Gray by a metal divider and could not see him—believes Gray “was intentionally trying to injure himself” by throwing himself against the vehicle’s walls.